Rukia held back a small chuckle at Sora's question. It was a natural reaction, after all. In response to his last words, she said, "I doubt that's why. Renji just tries to hard not to burden others. With anything." Maybe Sora would understand. He'd be doing better than her, if he managed that.

"Anyway, we're not ghosts, exactly. We help ghosts who are lost find their way to... well, to the afterlife, I suppose. I don't know what you call it in your world, but for us it's Soul Society."